US Bridges

Dallas ST SB over Pin Oak Branch

Good

Montgomery County, Texas · 0.3 MI SW of SH 75 · Structure no. 121700C00225118

Built
1975
50 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
7,740
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Dallas ST SB over Pin Oak Branch is a concrete culvert carrying Dallas ST SB over Pin Oak Branch in Montgomery County, Texas. It was built in 1975, so it is 50 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,740 vehicles a day, projected to reach 7,740 by 2033. The structure is 33 ft (10.1 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDallas ST SB
CrossesPin Oak Branch
Location0.3 MI SW of SH 75
RouteCity Street 0
CountyMontgomery County
StateTexas
Coordinates30.31706, -95.46839
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width57 ft (17.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,740 (2013)
Projected traffic7,740 by 2033
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dallas ST SB over Pin Oak Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Dallas ST SB over Pin Oak Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Dallas ST SB over Pin Oak Branch carry?

About 7,740 vehicles per day (2013 count).

How long is Dallas ST SB over Pin Oak Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 57 ft wide.

Who owns Dallas ST SB over Pin Oak Branch?

It is owned by the Town or Township Highway Agency.